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NumClassifykNNC::NumClassifykNNC(UIntT,const NumMagnitudeC &,const VectorC &) NumClassifykNNC::NumClassifykNNC(UIntT,const NumMagnitudeC &) NumClassifykNNC::NumClassifykNNC(BooleanT) NumClassifykNNC::NumClassifykNNC(void) NumClassifykNNC::NumClassifykNNC(const DPProcessBaseC &) NumClassifySupervisedC::Copy(void) const NumClassifySupervisedC::Body(void) NumClassifySupervisedC::Body(void) const NumClassifySupervisedC::IsA(const DPEntityC &) NumClassifySupervisedC::Learn(const NumVLDataSetC &) NumClassifyC::Body(void) NumClassifyC::Body(void) const NumClassifyC::IsA(const DPEntityC &) NumClassifyC::Copy(void) const NumClassifyC::Classify(const VectorC &) const NumClassifyC::Classify(const DListC &) const NumFuncC::IsA(const DPEntityC &) NumFuncC::Copy(void) const NumFuncC::operator=(const NumFuncC &) NumFuncC::Evaluate(const VectorC &) const NumFuncC::Evaluate(const DListC &) const NumFuncC::operator()(const VectorC &) const NumFuncC::Jacobian(const VectorC &) const NumFuncC::GetInfo(void) const NumFuncC::GetName(void) const NumFuncC::SizeX(void) const NumFuncC::SizeY(void) const NumFuncC::Save(ostream &) const NumFuncC::Body(void) NumFuncC::Body(void) const DPProcessC::Body(void) DPProcessC::Body(void) const DPProcessC::Apply(const InT &) DPProcessC::ApplyArray(const SArray1dC &,SArray1dC &) DPProcessC::operator=(const DPProcessC &) DPProcessC::Copy(void) const DPProcessBaseC::Body(void) DPProcessBaseC::Body(void) const DPProcessBaseC::InputType(void) const DPProcessBaseC::OutputType(void) const DPProcessBaseC::IsStateless(void) const DPProcessBaseC::OpType(void) const DPProcessBaseC::operator=(const DPProcessBaseC &) DPEntityC::operator=(const DPEntityC &) DPEntityC::Body(void) DPEntityC::Body(void) const DPEntityC::Save(ostream &) const RCHandleAC::Abstract(void) RCHandleAC::IsHandleType(const DT &) const RCHandleAC::CheckHandleType(const DT &) const RCHandleAC::Save(ostream &) const RCHandleAC::Copy(void) const RCHandleC::IsValid(void) const RCHandleC::IsValidObject(void) const RCHandleC::operator=(const RCHandleC &) RCHandleC::operator==(const RCHandleC &) const RCHandleC::operator!=(const RCHandleC &) const RCHandleC::Hash(void) const RCHandleC::IsConst(void) const RCHandleC::IsNotConst(void) const RCHandleC::SetConst(void) const RCHandleC::Invalidate(void) RCHandleC::Body(void) RCHandleC::Body(void) const

NumClassifykNNC
k-Nearest Neighbour classifier
include	"amma/Num/NumClassifykNN.hh"
User Level:	Default
Library:	NumClassify
Example:	testNumClassify.cc
Section:	Pattern Recognition.Classification.Implementation
In Scope:	std

Comments:
Class for performing Bayesian classification using a k-Nearest-Neighbour probability density function estimator. The prior probabilities must be provided.

public NumClassifySupervisedC

NumClassifykNNC(UIntT k,const NumMagnitudeC & d,const VectorC & priorC)

Constructor

k	number of neighbours to consider
d	metric to use for measuring distance in feature space
priorC	prior probabilities for each class

NumClassifykNNC(UIntT k,const NumMagnitudeC & d)

Constructor

k	number of neighbours to consider
d	metric to use for measuring distance in feature space

Assumes all the priores to equal.

NumClassifykNNC(BooleanT)

Create a classifiers with default values.
k=3- number of neighbours to consider

d=Euclidean- metric to use for measuring distance in feature space

Assumes all the priores to equal.

NumClassifykNNC()

Default constructor.
Creates an invalid handle.

NumClassifykNNC(const DPProcessBaseC & pb)

Base class constructor.
There is no actual body, so we'll make do with a cast to ClassifySupervsed.

NumClassifySupervisedC Copy() const

Makes a deep copy

NumClassifySupervisedBC & Body()

Access body.

const NumClassifySupervisedBC & Body() const

Access body.

BooleanT IsA(const DPEntityC & pb)

Check if an object is a NumFuncConstant.

void Learn(const NumVLDataSetC & train)

Used to train the classifier with labelled samples

NumClassifyBC & Body()

Access body.

const NumClassifyBC & Body() const

Access body.

BooleanT IsA(const DPEntityC & pb)

Check if an object is a one of these.

NumClassifyC Copy() const

Makes a deep copy

NumLabelC Classify(const VectorC & X) const

Returns the class label corresponding to the feature vector X

DListC<NumLabelC> Classify(const DListC<VectorC> & listX) const

Returns class labels corresponding to a list of X

BooleanT IsA(const DPEntityC & pb)

Check if an object is a NumFuncC.

NumFuncC Copy() const

Makes a deep copy

NumFuncC & operator=(const NumFuncC & oth)

Assignment operator

VectorC Evaluate(const VectorC & X) const

Evaluates function Y=f(X)

DListC<VectorC> Evaluate(const DListC<VectorC> & listX) const

Evaluates function Y=f(X) for a list of X

VectorC operator()(const VectorC & X) const

Evaluates function Y=f(X)

MatrixC Jacobian(const VectorC & X) const

Evaluates Jacobian df(X)/dX
Note that this is not const=0 since the base class will calculate a numerical estimate of the Jacobian using differences if the member function is not overloaded in derived classes to provide an analytical solution.

const StringC GetInfo() const

Gets string describing object

const StringC GetName() const

Gets type name of the object

UIntT SizeX() const

Input vector dimension

UIntT SizeY() const

Output vector dimension

BooleanT Save(ostream & out) const

Writes object to stream, cna be loaded using constructor

NumFuncBC & Body()

Access body.

const NumFuncBC & Body() const

Access body.

DPProcessBodyC<VectorC,VectorC> & Body()

Access body.

const DPProcessBodyC<VectorC,VectorC> & Body() const

Access body.

VectorC Apply(const VectorC & dat)

Apply operation.
NB. This may become constant in the future, but the situation isn't clear at the moment.

IntT ApplyArray(const SArray1dC<VectorC> & in,SArray1dC<VectorC> & out)

Streaming version.

const DPProcessC<VectorC,VectorC> operator=(const DPProcessC<VectorC,VectorC> & in)

Assignment operator

const DPProcessC<VectorC,VectorC> Copy() const

Make a copy of this process. Some type defs.

DPProcessBaseBodyC & Body()

Access body.

const DPProcessBaseBodyC & Body() const

Access body.

const type_info & InputType() const

Get input type.

const type_info & OutputType() const

Get input type.

BooleanT IsStateless() const

Is operation stateless ?

DPProcessBaseBodyC::ProcTypeT OpType() const

Operation type lossy/lossless.

const DPProcessBaseC & operator=(const DPProcessBaseC & oth)

Assignment operator.

const DPEntityC & operator=(const DPEntityC & dat)

Assignment.

DPEntityBodyC & Body()

Access body.

const DPEntityBodyC & Body() const

Access body.

BooleanT Save(ostream & out) const

RCAbstractC Abstract()

Create an abstract handle to this object.

BooleanT IsHandleType(const DT &) const

Is handle of given type ?

void CheckHandleType(const DT & dummy) const

Check handle type. Throw an expception if not.

BooleanT Save(ostream & out) const

Save to ostream.

RCHandleAC<DPEntityBodyC> Copy() const

Creat a deep copy of this object.
protected:

BooleanT IsValid() const

Check its a valid handle.

BooleanT IsValidObject() const

Check its a valid handle, and that the object is pointed to is also valid.

RCHandleC<DPEntityBodyC> & operator=(const RCHandleC<DPEntityBodyC> & oth)

Assignment.

BooleanT operator==(const RCHandleC<DPEntityBodyC> & oth) const

Comparison operator.

BooleanT operator!=(const RCHandleC<DPEntityBodyC> & oth) const

Comparison operator.

UIntT Hash() const

Hash function.x

BooleanT IsConst() const

Is object constant ?

BooleanT IsNotConst() const

Is object not constant ?

void SetConst(void) const

Lock the object.
This is const as a convience though it actual modified the object, often object you wish to ensure are constant already have const set. protected:

void Invalidate()

Turn this into an invalid handle.

DPEntityBodyC & Body()

Direct access to body.

const DPEntityBodyC & Body() const

Constant access to body.